"It's really all about humanitarian aid for people in those small island nations that are very remote from anywhere and have got very little... which I am firmly in favour of," he said.
He said he was involved in numerous trusts and organisations that helped the local community, so it was good to support the same being done overseas.
Despite travelling regularly on business, Mr La Grouw said he didn't often travel overseas on leisure and had never been to the islands.
His role will be firmly limited to observing, he said, while gaining an awareness of the contribution made by reservists - men and women who have careers in the defence force in parallel to civilian jobs.
Mr Holland said inviting influential employers on the four-day trip to Kiribati was an exercise by the military to show employers what reservists did and why giving them time off work for missions such as this was so worthwhile.
He said Exercise Boss Lift had been running about four years and was a positive interface between the military and the business community.
Mr Holland said Mr La Grouw's name was suggested as he was a respected Rotorua businessman.
"If he speaks well of it [reservists], people will listen."
